<template>
  <div class="login-container">
    <el-form
      class="login-form"
      ref="loginFromRef"
      :model="loginForm"
      :rules="loginRules"
    >
      <!-- 头部 -->
      <div class="title-container">
        <h3 class="title">{{ $t("msg.login.title") }}</h3>
        <lang-select class="lang-select" effect="light"></lang-select>
      </div>

      <!-- 用户名 -->
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon="user" />
        </span>
        <el-input
          placeholder="username"
          name="username"
          type="text"
          v-model="loginForm.username"
        />
      </el-form-item>

      <!-- 用户密码 -->
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon="password" />
        </span>
        <el-input
          placeholder="password"
          name="password"
          :type="passwordType"
          v-model="loginForm.password"
        />
        <span class="show-pwd" @click="onChangePwdType">
          <svg-icon :icon="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button
        type="primary"
        style="width: 100%; margin-bottom: 30px" 
        :loading="loading"
        @click="handleLogin"
        >{{ $t("msg.login.loginBtn") }}</el-button
      >

      <div class="tips" v-html="$t('msg.login.desc')"></div>
    </el-form>
  </div>
</template>

<script setup>
//中英文切换
import LangSelect from "/src/components/LangSelect"
// 引入国际化
import { useI18n } from "vue-i18n"
// 密码的校验规则
import { validatePassword } from "./rules"
import { ref } from "vue"
import { useRouter } from "vue-router"
import { useStore } from "vuex"
import { log } from "util"

// 数据
const loginForm = ref({
  username: "super-admin",
  password: "123456"
})

// 校验表单数据规格
const i18n = useI18n()
const loginRules = ref({
  username: [
    {
      required: true,
      trigger: "blur",
      message: i18n.t("msg.login.usernameRule")
    }
  ],
  password: [
    {
      required: true,
      trigger: "blur",
      // 自定义验证规则 对应的是一个函数
      validator: validatePassword()
    }
  ]
})

// 点击眼睛 密码框文本显示
const passwordType = ref("password")
const onChangePwdType = () => {
  console.log(1)
  // 使用ref声明内容修改的时候需要加value值
  passwordType.value === "password"
    ? (passwordType.value = "text")
    : (passwordType.value = "password")
}

// 登录事件
// 加载效果
const loading = ref(false)
// 表单验证
const loginFromRef = ref(null)
const store = useStore()
const router = useRouter()
const handleLogin = () => {
  // 1.进行表单校验
  loginFromRef.value.validate((valid) => {
    if (!valid) return
    // 2.触发登录动作
    loading.value = true
    // vuex里面的登录数据
    store
      .dispatch("user/login", loginForm.value)
      .then(() => {
        // 成功
        loading.value = false
        // 3.登录之后的处理
        router.push("/")
      })
      .catch((err) => {
        // 失败
        console.log(err)
        loading.value = false
      })
  })
}
</script>

<style scoped lang="scss">
// 样式变量
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
$cursor: #fff;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  // 表单
  .login-form {
    position: relative;
    width: 520px;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    // 深度选择器  父组件改变子组件
    ::v-deep .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
    ::v-deep .el-input__wrapper {
      list-style: none;
      border: none !important;
      background: rgba(0, 0, 0, 0.1);
      color: #454545;
    }

    // 输入框
    ::v-deep .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;

      input {
        background: transparent !important;
        border: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray !important;
        height: 47px;
        caret-color: $cursor;
      }
    }
  }

  // 提示信息
  .tips {
    font-size: 16px;
    line-height: 28px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  // 图标
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    display: inline-block;
  }

  // 顶部标题
  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    ::v-deep .lang-select {
      position: absolute;
      top: 4px;
      right: 0;
      background-color: white;
      font-size: 22px;
      padding: 4px;
      border-radius: 4px;
      cursor: pointer;
    }
  }

  // 密码后边的按钮
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
